216 NORTH AMERICAN FLORA [VoLumME 22 
Ribes aridum Greene, Pittonia 4: 35. 1899. 
Ribes amicium pubescens Jancz,. Mém. Soc. Genéve 35: 366. 1907. 
A shrub1.5m. high or less, with slender pubescent but not bristly twigs ; nodal spines 
acicular, brownish, straight or a little curved, 1.5 eni. long or less. Leaves small, 1.5-2.5 
em. wide, reniform-orbicular in outline, rather thin, 3-5-lobed and incisely dentate-crenate 
finely pubescent on both sides, sometimes densely so, sometimes nearly or quite glabrous 
above, the slender pubescent or sometimes nearly glabrous petioles as long as the blades or 
shorter; peduncles 1-3-flowered, shorter than the leaves, sometimes with a few stalked 
glands; bracts thin, clasping,.longer or sometimes shorter than the pedicels, pubescent or 
glabrate ; ovary usually white-hairy, bristly, the bristles mostly eglandular; hypanthium 
nearly cylindric, 5-7 mm. long, purple or purplish, pubescent; sepals purple, lanceolate, 
7-10 mm. long; petals involute, erose, about half the length of the sepals, about as long 
as the filaments; anthers ovate to lanceolate, mucronate, about 2.5 mm. long; berry 
bristly, purple, about 1-1.5 cm. in diameter. 
TYPE LOCALITY: Western North America. 
DISTRIBUTION : Middle and southern California. 
ILLUSTRATIONS: Regel, loc. ctt. pl. 982, f. 1-3 ; C. K. Schneid. Handb. Laubh. 1: f. 262 o-f. 
12. Grossularia amara (McClatchie) Coville & Britton. 
Ribes amarum McClatchie, Erythea 2: ’79. 1894, 
Ribes mariposanum Congdon, Erythea 7: 183. 1900. 
Ribes Menziesti amarum Jancz. Mém. Soc. Genéve 35: 363. 1907. 
A shrub 2.5 m. high or less, the slender young twigs pubescent or puberulent and 
glandular, the older ones smooth and brown ; nodal spines brown, 1 cm. long or less, some- 
times pubescent. Leaves suborbicular in outline, thin, 4m. wide or less, 3-5-lobed, incised, 
crenate-dentate, cordate or subtruncate at the base, more or less glandular-puberulent and 
pubescent on both surfaces, the pubescent and glandular petioles as long as the blades or 
shorter; peduncles 1~3-flowered, shorter than the leaves, glandular-pubescent; bracts 
broadly ovate, often 3-lobed, about 6 mm. long, shorter than or equaling the pedicels ; ovary 
very densely glandular-bristly, all or nearly all the bristles gland-tipped ; hypanthium nar- 
rowly campanulate, purplish, pubescent and with stalked glands, 5-6 mm. long; sepals purple 
or red-purple, lanceolate, loosely pubescent, a third to a half longer than the hypanthium; 
petals pinkish-white, broad, involute, about 4 mm. long, erose; filaments a little longer 
than the petals; anthers sagittate, mucronate, about 2.5 mm. long : berry subglobose, 1.3-2 
cm. in diameter, densely covered with short gland-tipped bristles producing a bitter 
secretion, the pulp sweet. 
TYPE LOCALITY: Cafions of the San Gabriel Mountains, California, 
DISTRIBUTION: Central to southern California, in the mountains. 
13. Grossularia sericea (Eastw.) Coville & Britton. 
Ribes sericeum Eastw. Proc. Calif. Acad. III. Bot. 2: 246. 1902. 
Ribes sericeum viridescens Eastw. Proc. Calif. Acad. III. Bot. 2: 247. 1902. 
Stems and branches rather densely clothed with short weak gland-tipped bristles; 
nodal spines 3, stout, the middle one 10-15 mm. long, the lateral ones somewhat shorter. 
Leaves thin, ovate-orbicular in outline, 3-5-lobed, 2-4 cm. long, the pubescence villous and 
also glandular, the lobes incised-crenate, the slender petioles glandular-pubescent, as long 
as the blades or shorter; peduncles 1-3-flowered, glandular-pubescent, 1.5-3 cm. long; 
bracts suborbicular, often 3-lobed ; pedicels about half aslong as the peduncles, glandular- 
pubescent ; ovary densely glandular-bristly and somewhat villous; hypanthium campanu- 
late, greenish-red, pubescent, 3-4 mm. long; sepals oblong, reflexed, red or greenish, 2 to 
3 times as long as the hypanthium, villous-pubescent ; petals white, 5 mm. long, involute, 
truncate, slightly erose; stamens about three times as long as the petals; anthers narrowly 
oblong, obtuse, 2 mm, long; berry globose, purple, about 1.5 cm. in diameter, densely 
bristly. 
TYPE LOCALITY : Spruce Creek, Monterey County, California. 
DISTRIBUTION : Monterey County, California. 
ILLUSTRATION: Eastw. loc. ctt. pl. 24, f. 9. 
